Minolia pseudobscura explained

Minolia pseudobscura is a fossil species of sea snail, a marine gastropod mollusk in the family Solariellidae.^[1]

Distribution

This fossil species occurs in Japan and South Australia. The small, solid shell has a depressed-conical shape. Its height attains 11 mm and its diameter also 11 mm. The shell contains seven whorls and a wide open umbilicus. The nucleus is smooth and rounded. The other whorls are tabulate with an almost horizontal surface and the lateral surface vertical and somewhat convex. The aperture is subcircular. The thin peristome is continuous.^[2]

References

• Makiyama, J., 1959: Matajiro Yokoyama's Tertiary fossils from various localities in Japan. Part 3. Palaeontological Society of Japan, Special Papers, no. 5, pp. 1–4, pls. 58–86
• Higo, S., Callomon, P. & Goto, Y. (1999). Catalogue and bibliography of the marine shell-bearing Mollusca of Japan. Osaka. : Elle Scientific Publications. 749 pp.

External links

• The University Museum of the University of Tokyo: Minolia pseudobscura

Notes and References

1. http://solariellidae.myspecies.info/category/solariellidae/solariellidae/minolia/minolia-pseudobscura S. Williams: Minolia pseudobscura
2. http://umdb.um.u-tokyo.ac.jp/DKoseibu/pdf/Ref_0490_.pdf Yokoyama Matajiro (1927), Fossil mollusca from Kaga, Journal of the Faculty of Science, Imperial University of Tokyo; Section 2, vol. 2, pt. 4, pp. 165–182, pls. 47–49